If we start by discussing about the history of production of these connecting devices, we find invention relates to a LED cluster unit comprising a group of LEDs used in traffic display signs on highways in USA and in Europe. Different designs for public uses started coming into pictures with the advent of technical renaissance and firms related to electrical and power generating market focused their raft attention to these components. These days these are produced on a very large scale and widely in demand in every part of the technically revolutionized world. These connectors are marketed in different models such as strip light splice connector, LED strip light connector, DC Plug connector, Waterproof solder connector pair, 8 way hard wire stripper, multi pole splice, etc.
Now our focus is automotive relay which also is an important technical segment. These relays can be seen in all shapes and sizes in every vehicle. These are used to enable low rated circuit. This low amperage circuit controls higher amperage circuit by switching it on and off for example putting on and off headlights of a car. If headlight switch is directly connected to headlights, risks as exceeded ampere rating of the switch melt wires, and electric fire cannot be avoided. These relays are also used for multiple switching at the same time with one output. There is a benefit related to single output for it allows one to open or close continuity at the same time.
Most of the automotive relays we find draw very less current because they are either single pole and single throw or single pole and double throw. Open contacts or close contacts could be seen handling up to 40 amperes. In its circuit, there is a coil and a load circuit with switch. Magnetic field is induced with the supply of current to the coil and it is set in to its operation. These are sophisticated equipments therefore, if not handled with care could give an immediate failure. However, there are manufacturers which have their team in research to make it more durable and long lasting seeing its important use. It has been also made cost effective to meet the rising demands. Latest updates related to these components can be followed in next article.